[ovs-discuss] How to monitor OVS GRE Tunnels
Ben Pfaff
blp at ovn.org
Mon May 14 16:13:10 UTC 2018
On Mon, May 14, 2018 at 03:15:37PM +0200, Klaus Darilion wrote:
> Hi!
>
> I have such a setup:
>
> Host1 Host2
> ovs <---GRE Tunnel---> ovs
> ^ ^
> | |
> | |
> 1G Ethernet 1G Ethernet
> | |
> | |
> V V
> Host1 Host2
> ovs <---GRE Tunnel---> ovs
>
> The 4 links are trunks. Now I wonder how I can monitor the status of the
> "distributed bridge", in particular the tunnel.
>
> I am using RSTP, hence if one of the GRE tunnels do not work the overall
> service still works. I.e. pinging from one hsot to the other will still
> work. Nevertheless I want to detect tunnel issues.
>
> Does someone have an idea how I can monitor the tunnels?
BFD is one choice. OVS supports BFD.
> PS: May I can monitor the number of BPDUs received on a port?
rstp_statistics:rstp_rx_count in the Port table reports this.
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